eMMC misc

 

emmc工作mode

1. device identification mode

2. data transfer mode

3. interrupt mode

emmc工作state

| device state | operation mode |
| Inactive State             //Inactive mode 
| Pre-Idle State   
| Pre-Boot State           //boot mode
| Idle State
| Ready State
| Identification State     //device identification mode
| Stand-by State 
| Sleep State
| Transfer State
| Bus-Test State
| Sending-data State
| Receive-data State
| Programming State
| Disconnect State        //data transfer mode
| Boot State                  //boot mode
| Wait-IRQ State           //interrupt mode